CN103996353A - Pressure-sensitive adhesive label, method of manufacturing pressure-sensitive adhesive label, and label issuing device - Google Patents

Pressure-sensitive adhesive label, method of manufacturing pressure-sensitive adhesive label, and label issuing device Download PDF

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Publication number
CN103996353A
CN103996353A CN201410055090.4A CN201410055090A CN103996353A CN 103996353 A CN103996353 A CN 103996353A CN 201410055090 A CN201410055090 A CN 201410055090A CN 103996353 A CN103996353 A CN 103996353A
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CN
China
Prior art keywords
adhesive label
functional layer
adhesive
layer
bonding coat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410055090.4A
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Chinese (zh)
Inventor
谷和夫
佐藤义则
畠山耕一
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Seiko Instruments Inc
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Seiko Instruments Inc
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Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of CN103996353A publication Critical patent/CN103996353A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/10—Removing layers, or parts of layers, mechanically or chemically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/20—Gluing the labels or articles
    • B65C9/24—Gluing the labels or articles by heat
    • B65C9/25—Gluing the labels or articles by heat by thermo-activating the glue
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/023—Adhesive
    • G09F2003/0241—Repositionable or pressure sensitive adhesive
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/023—Adhesive
    • G09F2003/025—Activatable adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1452—Polymer derived only from ethylenically unsaturated monomer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1476—Release layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Adhesive Tapes (AREA)
  • Laminated Bodies (AREA)

Abstract

A pressure-sensitive adhesive label comprising: recording paper including a recording surface; a barrier layer placed on the recording paper on an opposite side of the recording surface; a pressure-sensitive adhesive layer placed on the barrier layer; and a function layer placed on the pressure-sensitive adhesive layer, in which the function layer is configured to be opened by heating to expose the pressure-sensitive adhesive layer.

Description

The manufacture method of adhesive label, adhesive label and label distribution device
Technical field
The present invention relates to have non-cohesive exhibit adhesiveness and the adhesive label that uses in use in the time preserving.
Background technology
In recent years, show with the demonstration of label, commodity with label, advertising with the sealing of label, packing material with using adhesive label in the purposes such as label in price.Adhesive label shows that by comprising base material, bonding coat and the peeling paper (spacer) of recording layer form.In the time pasting by adherend, peel peeling paper, paste by adherend by the bonding coat exposing.Common adhesive label is pasted banded peeling paper and is carried out stamping-out and forms on bonding coat, and described bonding coat forms applying adhesive in the whole back side of banded base material.Therefore,, while pasting adhesive label peeling peeling paper, adhesive label whole face is overleaf pasted on by adherend.In addition, the peeling paper peeling in the time using adhesive label is not reused and discards, and therefore, cannot reduce environmental pressure.
All the time, on the surface of base material, possessing heat sensitive recording layer is utilized as the adhesive label that shows recording layer.This adhesive label makes heat sensitive recording layer color development carry out record by the first-class heating unit of heat.Specifically, adhesive label is on the surface of base material, to arrange the heat sensitive recording layer that mixes colour former and developer and form, arrange pressure-sensitive adhesive layer at the back side of base material, arrange the lit-par-lit structure of peeling paper on the surface of pressure-sensitive adhesive layer.On the face contacting with pressure-sensitive adhesive layer of peeling paper, apply silicone resin, the release property of peeling paper is improved.Cause the unexpected variable color of heat sensitive recording layer for fear of the heat when manufacturing, adhesive label is applying adhesive dry on peeling paper monomer conventionally, form pressure-sensitive adhesive layer, then across this pressure-sensitive adhesive layer to base material with peeling paper carries out lamination and make it integrated.Thus, prevent from causing due to the coating of bonding agent or the thermal conductance when dry the unexpected color development of lip-deep heat sensitive recording layer or the variable color that are arranged on base material.
On the other hand, knownly promisingly realize the reduction of environmental pressure and adopted the adhesive label that does not use the structure of peeling paper.This adhesive label forms heat sensitive recording layer on the surface of base material, arranges pressure-sensitive adhesive layer at the back side of base material, at release agents such as the surface of heat sensitive recording layer (being the upper space of adhesive label) coating silicone resins.Thus, even if roller shape ground coiling adhesive label also can be guaranteed the release property of heat sensitive recording layer and pressure-sensitive adhesive layer.
As above-mentioned existing adhesive label manufacture method, for example, in Japanese kokai publication hei 5-8541 communique, record and do not needed peeling paper and on roller, reel label thermosensitive recording body (adhesive label) the Shi Buhui generation sensitivity of heat sensitive recording layer or label thermosensitive recording body and the manufacture method thereof of unexpected color development or variable color., on the heat sensitive recording layer being formed on base material, peel ply is set and replaces peeling paper.But, in the time adopting solvent based remover as peel ply, because this solvent causes the sensitivity of heat sensitive recording layer or the color development meeting accident.In addition, in the time adopting latex class remover as peel ply, although solved the problem of above-mentioned solvent, peel off composition and immerse and recording sensitivity reduced or peel off the problem that composition shifts to bonding coat to heat sensitive recording layer.Therefore, on heat sensitive recording layer, apply non-solvent class silicone resin, form and irradiate and curing silicone resin layer by ultraviolet isoradial, as peel ply.Can prevent thus sensitivity or the unexpected color development of heat sensitive recording layer.
In addition, in Japanese kokai publication hei 10-171355 communique, recorded without paper label (not using the adhesive label of peeling paper) and manufacture method thereof.At use ultraviolet curing silicone resin layer, as the peel ply being formed in temperature-sensitive chromonic layer, when longer during the process before using, a part for pressure-sensitive adhesive is transferred to peel ply, and fissility is reduced.As a result, pressure-sensitive adhesive face and ultraviolet curing silicone resin face are bonding, become be difficult to outlet roller shape without paper label.And pressure-sensitive adhesive is transferred to temperature-sensitive chromonic layer, the heat of heat head is difficult to conduct to temperature-sensitive chromonic layer, thereby is difficult to color development.Therefore, adopt solvent-free silicone ketone resin as peel ply.That is, on the surface of label substrate that is provided with temperature-sensitive chromonic layer, apply solvent-less silicone layer, make it dry.Then, at the back side coating pressure-sensitive adhesive of label substrate and make it dry and form without paper label.Thus, can in the situation that not reducing fissility, send without paper label from roller, can make temperature-sensitive chromonic layer carry out brightly color development.
In addition in TOHKEMY 2004-1287 communique, recorded without spacer type thermosensitive recording label (not using the adhesive label of peeling paper) and manufacture method thereof.About without spacer type thermosensitive recording label, temperature-sensitive chromonic layer is set on the one side of base material, stacked peel ply thereon arranges adhesive layer on another one side of base material.Here, about peel ply, adjuvant is scattered in the remover matrix being made up of latex type silicone resin, remover matrix is heating and curing in the situation that there is the curing catalysts such as organotin or platinum catalyst.Thus, heat head becomes smoothly with surperficial the contacting of peel ply, carries out smoothly the movement of heat head, and the matching of peel ply and heat head improves.
Above-mentioned existing known adhesive label sticks on the whole face of adhesive layer by adherend.But, according to purposes, sometimes need to adhesive label be pasted on by adherend in the mode of the bounding force that seals partly adhesive label, instead of adhesive label whole face is overleaf pasted on by adherend.
For this adhesive label, for example in TOHKEMY 2012-63616 communique, propose not use peeling paper also only to make the adhesive label of necessary part exhibit adhesiveness, improve the adhesive label in the past using.Figure 11 is the schematic cross-section (Fig. 1 of TOHKEMY 2012-63616 communique) of this adhesive label 100.Adhesive label 100 possesses: supporting mass 102; Adhesive phase 103, it is formed on a surface of supporting mass 102 and has cohesive; Weak bonding coat 105, it is formed on the surface of adhesive phase 103; Reactable layer (functional layer) 104, it is formed on the surface of weak bonding coat 105, the opening by heating; And printed layers 106, its another surface that is formed on supporting mass 102 is upper, shorthand or figure.About this adhesive label 100, by the first-class heating unit of heat, functional layer 104 is heated to make its opening, the weak bonding coat 105 or the adhesive phase 103 that expose bottom carry out exhibit adhesiveness.Therefore, can, according to the purposes of adhesive label 100 or according to by the character of adherend, at random set the region of exhibit adhesiveness.In addition, because do not need peeling paper, so have advantages of that environmental pressure reduces.
The adhesive label of recording in above-mentioned Japanese kokai publication hei 5-8541 communique, Japanese kokai publication hei 10-171355 communique and TOHKEMY 2004-1287 communique does not use peeling paper, so reduced environmental pressure.But, need to replace peeling paper and peel ply is directly set on the surface of heat sensitive recording layer, at its textural recording sensitivity that can reduce heat sensitive recording layer.In addition, because peel ply is directly set on heat sensitive recording layer, so need to use silicone resin of ultraviolet hardening etc. as this peel ply.The silicone resin of ultraviolet hardening has the problems such as the filming difficulty of high price and peel ply.And the silicone resin of ultraviolet hardening has the trend of heating in the time solidifying, in coating condition, produce restriction, so also need new manufacturing installation., the few ozone free type of generation ozone of the selected Cooper-Hewitt lamp of lamp that ultraviolet curing is used, middle medium pressure mercury lamp, high-pressure mercury-vapor lamp, metal halide lamp, need to be arranged with the manufacturing installation of output lamp with high more than multiple output 30W/cm etc.
The adhesive label 100 of recording in TOHKEMY 2012-63616 communique is not because use peeling paper, thus environmental pressure reduce, in addition, can set arbitrarily manifest cementability region aspect be useful.But, making paper using etc. as supporting mass 102, the heat sensitive recording layer being made up of colour former, developer during as printed layers 106, is needed so that the mode of the impact that heat sensitive recording layer is not heated is manufactured.In the manufacture method of the existing known adhesive label with peeling paper, applying adhesive on peeling paper, be pasted on supporting mass, but the functional layer 104 of this adhesive label 100 is thinner, and intensity is low after dry.Therefore, as existing method in functional layer 104 applying adhesive and make it dry after to carry or stick on supporting mass 102 be difficult.And reactable layer 104 need to be maintained within a certain range the tension force of flow direction or Width in manufacturing process, further guarantees surperficial flatness.Therefore, as the conventional example, cannot utilize the substitute of reactable layer 104 as peeling paper.
On the other hand, in the time that the method for above-mentioned Japanese kokai publication hei 5-8541 communique, Japanese kokai publication hei 10-171355 communique or TOHKEMY 2004-1287 communique of employing is manufactured the adhesive label 100 that TOHKEMY 2012-63616 communique records, need to be on supporting mass 102 directly applying adhesive form adhesive phase 103.But when on supporting mass 102 directly when applying adhesive, solvent volatilizees from bonding agent, the printed layers 106 forming on the surface of the opposition side of supporting mass 102 is carried out unexpected color development or variable color.For anti-situation here, it is also conceivable that the solvent that makes the thickness thickening of supporting mass 102 and comprise at bonding agent is immersed in the situation that before the heat sensitive recording layer side of supporting mass 102, the solvent seasoning of bonding agent is gasified.But the thickening of adhesive label 100 own and volume increase, and elongated for the drying process that the solvent of bonding agent is gasified totally, heat sensitive recording layer is because the heat in drying process is carried out unexpected color development or variable color.
Summary of the invention
Based on above problem, in this technical field, expect can avoid making heat sensitive recording layer carry out adhesive label, its manufacture method and the adhesive label manufacturing installation of color development or variable color due to the heat in manufacturing process or solvent.
The adhesive label of the present invention's one mode possesses: recording chart, and it has record surface; Restraining barrier, it is arranged on a side contrary with described record surface of described recording chart; Bonding coat, it is arranged on described restraining barrier; And functional layer, it is arranged on described bonding coat, and by heating, opening exposes described bonding coat to described functional layer.
In addition, water-soluble high-molecular material is contained on described restraining barrier.
In addition, described water-soluble high-molecular material contains water soluble propene's resin.
In addition, in described restraining barrier, contain described water soluble propene's resin with the scope of 10wt%～40wt%.
In addition, described restraining barrier is with 0.5g/m 2～5g/m 2scope form.
In addition, described water-soluble high-molecular material contains polyvinyl alcohol (PVA).
In addition, the scope of the average bed thickness of described functional layer in 0.1 μ m～10 μ m.
In addition, described functional layer is made up of olefine kind resin.
In addition, described functional layer is made up of porous layer.
In addition, the void content of described porous layer is in 30%～85% scope.
In addition, described functional layer is laminated with the first immiscible each other thermoplastic resin and the second thermoplastic resin.
In addition, by the heating of described functional layer, the diameter of the peristome of opening is not less than 40 μ m.
In addition, in described functional layer, be provided with release layer.
In addition, described recording chart at least has the heat sensitive recording layer recording by heating on described record surface.
The manufacture method of the adhesive label of the present invention's one mode comprises following operation: restraining barrier forms operation, at a side coating blocking agent contrary with record surface of recording chart, is dried to form restraining barrier; Bonding coat forms operation, on described restraining barrier, forms bonding coat; And functional layer attaching operation, on described bonding coat, paste by heating the functional layer of opening.
In addition, described functional layer is made up of olefine kind resin.
In addition, described restraining barrier is made up of water-soluble high-molecular material.
The label distribution device of the present invention's one mode possesses: delivery section, and it carries above-mentioned adhesive label; Heating part, it heats described functional layer and forms peristome, and described bonding coat is exposed; And control part, it controls described delivery section and described heating part.
In addition, heat the described record surface of described adhesive label and carry out record.
The adhesive label of the present invention's one mode possesses: the recording chart with record surface; Be arranged on the bonding coat of a side contrary with record surface of recording chart; And functional layer, it is arranged on bonding coat, and the opening by heating exposes bonding coat.Prevent owing to causing the record surface of recording chart to produce unexpected color development or variable color from the solvent of bonding coat volatilization in the time forming or bonding coat is set.
Brief description of the drawings
Fig. 1 is the schematic cross-section of the adhesive label of first embodiment of the invention.
Fig. 2 A, Fig. 2 B, Fig. 2 C are the figure for the situation of exhibit adhesiveness on the adhesive label of first embodiment of the invention is described.
Fig. 3 A, Fig. 3 B illustrate the experimental result of the effect on the restraining barrier of the adhesive label of investigation first embodiment of the invention.
Fig. 4 is the schematic cross-section of the adhesive label of second embodiment of the invention.
Fig. 5 is the schematic cross-section of the adhesive label of third embodiment of the invention.
Fig. 6 is the schematic cross-section of the adhesive label of four embodiment of the invention.
Fig. 7 is the schematic cross-section of the adhesive label of fifth embodiment of the invention.
Fig. 8 is the process chart that the adhesive label manufacture method of sixth embodiment of the invention is shown.
Fig. 9 is the schematic pie graph of the label distribution device of seventh embodiment of the invention.
Figure 10 is the schematic pie graph of the label distribution device of eighth embodiment of the invention.
Figure 11 is the schematic cross-section of existing known adhesive label.
Embodiment
Adhesive label 1 of the present invention possesses recording chart, restraining barrier, bonding coat and functional layer, and functional layer is carried out opening by heating exposes bonding coat.
Fig. 1 is the schematic cross-section of the adhesive label 1 of first embodiment of the invention.As shown in Figure 1, adhesive label 1 possesses the lit-par-lit structure of recording chart 2, restraining barrier 5, bonding coat 3 and functional layer 4.The surface of a side contrary with restraining barrier 5 of recording chart 2 is record surface, is formed with not shown heat sensitive recording layer., restraining barrier 5 is arranged on a side contrary with record surface of recording chart 2.Bonding coat 3 is set on restraining barrier 5.Functional layer 4 is arranged on bonding coat 3, carries out opening bonding coat 3 is exposed by heating.
Fig. 2 A, Fig. 2 B, Fig. 2 C are the figure of the situation for adhesive label 1 exhibit adhesiveness that makes first embodiment of the invention is described.Use hot 15 as heating unit.As shown in Figure 2 A, the heating part H of hot 15 is contacted with the functional layer 4 of adhesive label 1.Like this, as shown in Figure 2 B, the functional layer 4 after heating melts and shrinks and forms peristome 13, exposes the bonding coat 3 of lower floor.Then, as shown in Figure 2 C, peristome 13 sides are set to by adherend 12, relatively press from recording chart 2 sides, the bonding agent via peristome 13, bonding coat 3 being comprised is thus bonded in by adherend 12.Therefore, utilize quantity or the position of a heat 15 selected peristome 13, can, according to by the character of adherend 12 or purposes, control the cohesive of adhesive label 1.And, because do not adopt peeling paper, so environmental pressure reduces.
And by be provided with restraining barrier 5 between recording chart 2 and bonding coat 3, the solvent that restriction bonding agent comprises is exuded to recording chart 2 sides, prevents that the record surface of recording chart 2 from producing unexpected color development or variable color.The colour former that therefore, can use on the record surface of recording chart 2 or the kind of developer increase.In addition, can reduce the weighing of recording chart, form thinlyyer., the range of choice of spendable recording chart 2 increases.Below, describe particularly.
Restraining barrier 5 has solvent resistance and stops the blocking effect of solvent.Restraining barrier 5 is preferably used the material also except resistance to block, solvent resistance with heat impedance, water tolerance, resistance to plasticity.Restraining barrier 5 is used the material of rapid-drying properties.Preferably use and there is the material that for example 1m/min is above, be preferably rapid-drying properties more than 3m/min.Restraining barrier 5 is preferably with 0.5g/m 2～5g/m 2scope form.When restraining barrier 5 is lower than 0.5g/m 2time, stop that the blocking effect of solvent reduces, when exceeding 5g/m 2time, processability reduces.Restraining barrier 5 is also as the relative packing layer performance function of the bonding coat 3 of the side contrary with record surface of recording chart 2.
Can use water-soluble high-molecular material as restraining barrier 5.As water-soluble high-molecular material, can use water soluble propene's resin.As other water-soluble high-molecular material, can adopt polyvinyl alcohol (PVA), starch and itaconic acid modified polyvinylalcohol, the derivant of the vinyl alcohols such as sulfonic acid modified polyvinyl alcohol (PVA), Carboxymethyl Cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, methylcellulose, the cellulose derivatives such as ethyl cellulose, sodium polyacrylate (Port リ ア Network リ Le Suan ソ ー ダ), polyvinylpyrrolidone (Port リ PVC ニ Le ピ ロ リ De Application), acrylamide/acrylate copolymer, acrylamide/acrylate/metering system acid ter-polymer, styrene/anhydrous maleic acid multipolymer alkali salt, isobutylene/anhydrous maleic acid multipolymer alkali salt, polyacrylamide, sodium alginate (ア Le ギ Application Suan ソ ー ダ), gelatin, casein etc.
Water soluble propene's resin can be the scope of 10wt%～40wt% on restraining barrier 5.When water soluble propene's resin is during lower than 10wt%, stop that the blocking effect of solvent reduces, in the time exceeding 40wt%, processability reduces.The solid composition of water soluble propene's resin preferably contains 10wt%～30wt%, preferably contains roughly 20wt%.In addition, the scope that the viscosity of water soluble propene's resin is 500mPas～3000mPas, more preferably viscosity is 1000mPas roughly.
Recording chart 2 comprises the base material being made up of paper etc. and is arranged on the lip-deep heat sensitive recording layer of base material.About heat sensitive recording layer, for example use leuco dye as colour former, the compound of use color development by hot contact with above-mentioned leuco dye or oxide are as developer.The record surface of recording chart 2 is the surface that is formed with a side of above-mentioned heat sensitive recording layer.In addition, the record surface that also can utilize ink-jetting style, electrofax mode, laser printing mode etc. to record, replaces the situation that forms heat sensitive recording layer.In the case, can be using the surface of the base material being formed by paper etc. as record surface.
The base material of recording chart 2 is bonding coat 3 and the material by the contact area increase between adherend 12 in the time pressing from recording chart 2 sides as shown in Figure 2 C preferably.In addition, preferably can maintain for a long time the material of its contact area.In the time using the large material of rigidity as base material, bonding coat 3 becomes and is difficult to via peristome 13 and by the Surface Contact of adherend 12, and after contact, due to the rigidity of base material, bonding coat 3, from by the sur-face peeling of adherend 12, cannot maintain predetermined bounding force.Therefore the paper that, use rigidity is little or polyolefin polymers are as the base material of recording chart 2.
In the time making paper using as the base material of recording chart 2, comprise any one in viscose paper, good quality paper, art paper, design paper, Japan paper, nonwoven fabrics, synthetic paper, recycled writing paper, coated paper, micro-coated paper, cast-coated paper, ground paper.Good quality paper is preferably taking plant materials such as wood pulp, straw, bagasse, fiber crops such as broad leaf tree paper pulp (NBKP), conifer paper pulp (LBKP) as primary raw material, and uncoated pigment.Good quality paper preferably belongs to paper in the paper that is categorized as printing information paper using in " paper ground paper statistics chronology " in " the assortment table of paper ground paper " (issue of Nippon Paper federation) of recording, that be categorized as non-coating and printing paper using, and is categorized as form paper using, the PPC paper using etc. of information paper using.Recycled writing paper preferably uses the paper of the use recycled waste paper raw material being categorized as in above-mentioned good quality paper.
Art paper and coated paper are categorized as the paper of coating and printing paper using in above-mentioned " the assortment table of paper ground paper ", comprise the paper that is categorized as light weight coated paper.During micro-coated paper is included in above-mentioned " the assortment table of paper ground paper ", be categorized as the paper of micro-coating and printing paper using 1～3.Design paper bag is drawn together the chromatics paper and the water marked paper that are categorized as special printing and other coating and printing paper using.
Cast-coated paper is the cast-coated paper that is categorized as other printing in above-mentioned " the assortment table of paper ground paper ", is the paper of the senior printing purposes of being used in of flatness excellence.Ground paper is the paper that is categorized as corrugated paper body paper, paper device ground paper in above-mentioned " the assortment table of paper ground paper ".Except using, Portugal coils Japan paper, the handmade paper of the plant material such as yellow winter daphne, also comprise the mechanical copy paper Japan paper etc. that imitates these.Nonwoven fabrics comprises does not make water and the sheet material of shape.Synthetic paper is formed as laminar formation by axle stretch process etc. by synthetic resin raw material.
For using above-mentioned which kind of material as the base material of recording chart 2, by considering that label applications or demonstration record content etc. and determine.For example, the purposes of adhesive label 1 is in the situations such as various packaging for foodstuff labels or the purposes that affixes to products catalogue, placard etc., as base material, and the coated papers such as preferred coatings paper, art paper, cast-coated paper.In addition, in the time that adhesive label 1 is special tag purposes, as base material, decision design paper, nonwoven fabrics, synthetic paper, ground paper etc.In addition, on the record surface of recording chart 2 taking word or bar code when main body records, as the preferred micro-coated paper of base material or good quality paper.
As the base material of recording chart 2, can use polyolefin polymers.Polyolefin polymers adopts the resin that derives from plant of environmental suitability excellence, there is little, the outstanding resistance to broken elasticity of low temperature contractibility, flexibility and natural shrinking rate, rigidity and shrink Ga り on planarization (Shou Shrink bodyguard), and there is the characteristic that suppresses natural shrinking and splitting.In addition, these are only example, as long as can easily show bounding force, any material can be used as the base material of recording chart 2., can carry out suitable adjustment according to purposes.
Can use Pressuresensitive Adhesive as bonding coat 3.For Pressuresensitive Adhesive, can not apply water, solvent, heat etc. and only apply at normal temperatures less pressure and carry out bonding.Further, can there is cohesive force and elasticity, carry out the bonding of brute force, also can peel off from harder even surface simultaneously.Specifically, can use silicone bonding agent, rubber adhesive, acrylic adhesives according to purposes.Silicone bonding agent comprises the silicone with high cohesive force and the silicone with high adhesion.Rubber adhesive comprises natural rubber, styrene-butadiene rubber (SBR), polyisobutylene, rubber type of material.Acrylic adhesives comprises the non-crosslinked class material that has utilized the crosslinked class material of monomer that glass transition temperature is low and crosslinked material and monomer low glass transition temperature and the high monomer copolymerization of glass transition temperature are formed.
The solvent using in the time forming bonding coat 3 comprises latex class and organic solvent class.The in the situation that of class with an organic solvent, the boiling point of organic solvent can be made as to the temperature when dry.For example, using toluene as organic solvent in the situation that, the temperature when dry is made as 70 DEG C.In the situation that using ethyl acetate class as organic solvent, the temperature when dry is made as 75 DEG C.In the case of using the solvent of latex class, the temperature when dry is made as 100 DEG C.The in the situation that of class with an organic solvent, capable of regulating temperature, transporting velocity and air quantity in the drying process operation after applying adhesive.In 1 organic solvent class or 2 organic solvent classes, can be below boiling point by the Temperature Setting of drying process operation, and regulate air quantity etc.Consider the color development temperature of heat sensitive recording layer, preferably using toluene as solvent.
Functional layer 4 is preferably the controlled good material of the peristome 8 that can form certain opening footpath while being applied in heat.As functional layer 4, can use olefine kind resin or engineering plastics.Olefine kind resin uses in multiple use as resins for universal use, thereby can form at low cost functional layer 4.As olefine kind resin, can use the multipolymer of multipolymer, hexamethylene terephthalate and the cyclohexane two methylene terephthalate of the overlapping multi-layer polyolefin class forming of tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), PE or PP, polystyrene (PS), polyester, polyethylene terephthalate (PET), ethylene glycol terephthalate and ethylene isophthalate etc.In order to improve opening sensitivity, particularly preferably be multipolymer with multipolymer, hexamethylene terephthalate and the cyclohexane two methylene terephthalate of ethylene glycol terephthalate and ethylene isophthalate etc.
Olefine kind resin can use homopolymer and multipolymer, multistage polymkeric substance etc.Being selected from polyolefin in the group of these homopolymer and multipolymer, multistage polymkeric substance can use separately or also can mix use.As the typical example of above-mentioned polymkeric substance, can enumerate Low Density Polyethylene, wire Low Density Polyethylene, medium density polyethylene, high density polyethylene, ultra-high molecular weight polyethylene, isotactic polypropylene, random polypropylene, polybutylene, ethylene propylene rubber etc.
Further, as functional layer 4, can use the hybrid, Ethylene/vinyl acetate copolymerization (EVA) class, polyvinyl alcohol (PVA) (PVA) class of the lamination form of PS and PET, as PLA (PLA) class of plant raw material etc.The cellulose material that in addition, can use estimation to reduce costs.The material increasing with respect to the contact angle of adjacent bonding coat 3 while being preferably chosen in heating.Can use in addition and use when functional layer 4 drawing process to carry out the material that unilateral stretching or two-way stretch form forming.Using stretched film in the situation that, thereby can use the material that single monomer is formed with other monomer copolymerization or the control that becomes to assign to carry out glass transition point by xenogenesis such as mixed rubbers aspect chemical and the stable material of mechanical aspects.Altogether pulling method can be also two-way stretch method for unilateral stretching method, from the viewpoint of the orientation of film, uniformly dispersed, molecules align or physical strength, preferred two-way stretch method.Two-way stretch method can be any one in successively two-way stretch method or the method for two-way stretch simultaneously.Conventionally,, the in the situation that of two-way stretch method, can, by longitudinal, horizontal sequence stretching, also can stretch by contrary order.Be not particularly limited for draw ratio, can determine according to utilized material or the desired sensitivity of film etc.The draw ratio of vertical and horizontal is preferably 2 times～10 times, is more preferably suitably 3 times～8 times.In addition, also can after two-way stretch, again carry out vertical or horizontal or vertically and horizontally stretching.Functional layer 4 forms thinlyyer, and thermal capacity is less, and sensitivity is higher.
The viscosity average molecular weigh of olefines be preferably more than 50,000 and 1,200 ten thousand following, more preferably more than 50,000 and be less than 2,000,000, most preferably be more than 100,000 and be less than 1,000,000.Viscosity average molecular weigh is 50,000 when above, and melting tension force when melt molding increases, mouldability improves, fully complexing, is easily high strength.Viscosity average molecular weigh is below 1,200 ten thousand time, and thickness stability is excellent especially.
In addition, functional layer 4 preferably has the characteristic that thermal capacity is little.That is, the thermal capacity of functional layer 4 is less than in the situation of bonding coat 3, in the time that functional layer 4 is heated, intensification that can promotion functions layer 4 and melting, can prevent that bonding coat 3 is because heat deforms or rotten simultaneously.Herein, the average bed thickness of functional layer 4 is preferably the thickness of 0.1 μ m～10 μ m.If the thickness of functional layer 4 is thinner than 0.1 μ m, the coating of bonding coat 3 reduces; If exceed 10 μ m, the opening footpath of heat conductivity reduction, peristome reduces.Use in the situation of polyester film as functional layer 4, preferably making thickness is 0.1 μ m～5 μ m.Thickness is 5 μ m when following, opening excellence; Be 0.1 μ m when above, can stably form film.In addition, the fusing point of functional layer 4 is the scope of 50 DEG C～280 DEG C, is preferably the scope of 220 DEG C～250 DEG C.Can improve thus the controlled of opening shape.In addition, the glass transition temperature of functional layer 4 is more than normal temperature.Thus, the processing of adhesive label 1 becomes easy.
The bonding coat 3 that in addition, need to make to expose at peristome 13 contacts and maintains this contact with bonded body 12.For this reason, need make the diameter of peristome 13 be not less than 40 μ m.If lower than 40 μ m, the bounding force between bonding coat 3 and bonded body 12 reduces, and is unsuitable for practical application.The thickness of bonding coat 3 is preferably 20 μ m～300 μ m.If form thinlyyer than 20 μ m, bonding coat 3 is difficult to via the Surface Contact of peristome 13 and bonded body 12, cannot guarantees sufficient bonding force.If the thickness of bonding coat 3 is thicker than 300 μ m, bonding coat 3 itself is difficult to form.
In addition be preferably that 0.3N/(50mm is wide with respect to the bounding force of bonded body 12)～20N/(50mm is wide).Bounding force is that 0.3N/(50mm is wide) mean, the adhesive label of wide 50mm 1 is attached on the bonded bodies 12 such as corrosion resistant plate, make bending 180 ° and while being stretched to the end side of opposite side of one side end, for from bonded body 12 release adhesive labels 1, need the power (JIS Z0237-2001 regulation) of 0.3N.Do not reach 0.3N/(50mm at bounding force wide) in the situation that, a little less than bounding force; To exceed 20N/(50mm wide) in the situation that, be difficult for from bonded body 12 release adhesive labels 1, be unpractical.
Fig. 3 A, Fig. 3 B illustrate the experimental result of the effect on the restraining barrier 5 of the adhesive label of investigation first embodiment of the invention.Fig. 3 A is the photo of the record surface do not use restraining barrier 5 on adhesive label 1 time, and Fig. 3 B is the photo that is provided with the record surface of the adhesive label of the present invention 1 on restraining barrier 5 on adhesive label 1.Be not provided with the adhesive label 1 on restraining barrier 5 as shown in Figure 3A, the record surface that is coated with the region Ra of bonding coat 3 at the back side of recording chart 2 becomes black, and the record surface of other region Rb of uncoated bonding coat 3 does not have variable color.On the other hand, be provided with the adhesive label 1 on restraining barrier 5 as shown in Figure 3 B, be coated with at the back side of recording chart 2 that the record surface of region Ra of bonding coat 3 and the record surface of other region Rb of uncoated bonding coat 3 are same does not have a variable color.,, by between recording chart 2 and bonding coat 3, restraining barrier 5 being set, the solvent of emitting when bonding coat 3 is coated in the back side of recording chart 2 by restriction is exuded to recording chart 2 sides, prevents that the record surface of recording chart 2 from producing unexpected color development or variable color.
Fig. 4 is the schematic cross-section of the adhesive label 1 of second embodiment of the invention.Itself and the first embodiment difference are, contain inorganic filler 6 in functional layer 4; Other is identical with the first embodiment.Thereby, below mainly different parts is described.For same section or there is the part mark same numeral of identical function.
Adhesive label 1 has the structure that recording chart 2, restraining barrier 5, bonding coat 3 and functional layer 4 stack gradually, and contains dispersedly inorganic filler 6 in functional layer 4.Inorganic filler 6 is formed by inorganic material.Compared with resin material, the pyroconductivity of inorganic material is high.For example, the pyroconductivity of macromolecular material is 0.1W/(m DEG C)～0.5W/(m DEG C), but the thermal conductivity ratio of inorganic material it is high one more than the order of magnitude.Therefore, the pyroconductivity of functional layer 4 improves, and can make the temperature of the heating region of functional layer 4 increase rapidly according to the mode that spreads all over whole bed thickness.Thus, can sensitivity well and stably make functional layer 4 openings, can control accurately the position of exposing region, the area of bonding coat 3.In addition, because the thickness of the functional layer 4 of opening itself or the surrounding of peristome 13 form higher than the surface of functional layer 4, thereby can prevent that heating part from directly contacting, can guarantee the logical paper of adhesive label 1 with bonding coat 3.In addition, bonding coat 3 can be brought into play by its bounding force the effect of the hole enlargement of inhibit feature layer 4, but along with the temperature rise of bonding coat 3, bounding force reduces.That is, inorganic filler 6 is dispersed in functional layer 4, makes pyroconductivity increase, thereby can reduce the temperature inequality of functional layer 4, simultaneously bonding coat 3 is also heated and cause adhesive effect to reduce, and the ability of the hole enlargement of inhibit feature layer 4 reduces.Thus, can more easily form peristome 13 in functional layer 4.
The inorganic filler 6 that functional layer 4 contains 10 volume %～90 volume %.If be less than 10 volume %, the effect that pyroconductivity improves is little; If higher than 90 volume %, the deviation of physics value increases.In addition, due to for resin material covers the structure of inorganic filler 6, thereby the pyroconductivity of resin material is overriding, do not show according to the heat conductivity of the proportional distribution of resin material and inorganic material.Functional layer 4 preferably contains the inorganic filler 6 of 20 volume %～60 volume %.Functional layer 4 can be added the physics value adjustment materials such as plastifier as required.The shape of inorganic filler 6 can be tabularly also can for spherical, to be not particularly limited, and considers deviation or the dispersiveness of physics value, than non-spherical, and more preferably spherical particle shape.
Kind for inorganic filler 6 is not particularly limited.For example can use: the oxide-based potteries such as aluminium oxide, silicon dioxide, titania, zirconia, magnesium oxide, yttria, zinc paste, iron oxide; The nitride-based potteries such as silicon nitride, titanium nitride, boron nitride; The potteries such as silit, calcium carbonate, aluminium sulphate, aluminium hydroxide, potassium titanate, talcum, porcelain earth, smalite, halloysite, pyrophyllite, polynite, sericite, mica, amesite, bentonitic clay, asbestos, zeolite, calcium silicate, magnesium silicate, zeyssatite, silica sand; Glass fibre etc., they can be used alone or both above mixing are used.For example, the filler of boron nitride, silit, aluminium nitride demonstrates than the pyroconductivity of high 5～40 times of oxide filler.In addition,, by add the oxide filler such as aluminium oxide, silicon dioxide in resinous wood, can make pyroconductivity improve one more than the order of magnitude.Other material of each layer and formation are identical with the first embodiment, thereby description thereof is omitted.
Fig. 5 is the schematic cross-section of the adhesive label 1 of third embodiment of the invention.Itself and the first embodiment difference be, functional layer 4 is porous layer; Other formation is identical with the first embodiment.Thereby, below mainly difference is described.For same section or there is the part mark same numeral of identical function.
Adhesive label 1 has the structure that recording chart 2, restraining barrier 5, bonding coat 3 and functional layer 4 stack gradually, and functional layer 4 is formed by the porous layer that contains a large amount of emptying apertures 9 (hereinafter referred to as Porous functional layer).Compared with the functional layer being made up of the homogeneous material of non-porous matter and same thickness, the thermal capacity of Porous functional layer is little.Therefore,, compared with same material by non-porous matter, can utilize lower thermal energy to carry out opening.There is melting by heating in Porous functional layer, utilizes surface tension to carry out opening.In this case, compared with the functional layer being made up of the homogeneous material of non-porous matter, the density of material of Porous functional layer is little.And owing to being formed with a large amount of holes on the surface of Porous functional layer, thereby compared with the homogeneous material of non-porous matter, the contact area between Porous functional layer and bonding coat 3 reduces.Therefore,, for Porous functional layer, hinder the adhesive effect of the bonding coat 3 of its opening also to die down.In addition, the Porous functional layer of opening forms protuberance according to the volume of the porous material of melting and aperture area at peripheral part.Because Porous functional layer contains a large amount of hollow region at layer, thereby compared with the same material of non-porous matter, it does not have heat diffusivity, and instant heating shielding is high, heat is difficult to spread at in-plane.Therefore, peristome can not be expanded to the region beyond the region that heating part H contacts.Its result is can manifest with high sensitivity the adhesion characteristic of adhesive label 1, and can control accurately position or the shape of peristome 13.
Compared with the homogeneous material of non-porous matter, Porous functional layer has damping characteristics.Utilize the damping characteristics of Porous functional layer, can improve the adaptation with respect to heat head, be easy to the heat of heating part to be passed to Porous functional layer.Therefore,, even in the case of the surface smoothness of functional layer 4 is poor, the opening sensitivity that also can improve Porous functional layer, can accurately control position or the shape of peristome, thereby manifests desired cohesive.
The preferred void content of Porous functional layer is 30%～85%, average pore size is 0.01 μ m～10 μ m.The thickness of Porous functional layer can be 0.1 μ m～50 μ m, be preferably 1 μ m～30 μ m.In addition, preferably the average pore size of Porous functional layer is set as being less than the bed thickness of Porous functional layer, to can not form through hole.Thus, can reduce the thermal capacity of Porous functional layer, carry out opening with low-heat energy.In adhesive label 1 of the present invention, heating part H and bonding coat 3 are because the thickness of the Porous functional layer of opening is difficult for contacting with the protuberance that the periphery at peristome 13 forms.In addition, Porous functional layer temperature heated and that carry out opening depends on the material behavior of porous layer, is roughly 100 DEG C～200 DEG C.Thus, can tackle the energy-saving of device and the high-sensitivity of adhesive label.
As Porous functional layer, can use synthetic resin material, thereby the bonding coat 3 that makes the thermal capacity of unit area be less than its underpart forms.That is, form by the bonding coat 3 that makes the thermal capacity of Porous functional layer of lower floor be less than upper strata, can suppress the bonding coat 3 on upper strata intensification, can prevent that bonding coat 3 from deforming owing to being heated or rotten.
Porous functional layer in the situation that being obtained by drawing process, for example, can be sneaked into the particle of gasification and it is disperseed in the material as base material, by particle gasification, forms this Porous functional layer.As base material, can use olefine kind resin, this is illustrated in the first embodiment.Other material of each layer and formation are identical with the first embodiment, thereby description thereof is omitted.
Fig. 6 is the schematic cross-section of the adhesive label 1 of four embodiment of the invention.Be with the difference of the first embodiment, functional layer 4 is made up of two layers of thermoplastic resin.Other structure is identical with the first embodiment.Therefore,, mainly different parts is described.For same section or there is the part mark same numeral of identical function.
As shown in Figure 6, functional layer 4 has each other the first fused thermoplastic resin 4a and the stacked structure of the second thermoplastic resin 4b.By being mixed to extruding with the second thermoplastic resin 4b, the first not fused each other thermoplastic resin 4a forms functional layer 4.The layers cementing intensity that can make the first thermoplastic resin 4a and the second thermoplastic resin 4b is that the deviation of 0.05g/cm～5g/cm, overall bed thickness is below 10%.In addition, can make functional layer 4(the second thermoplastic resin 4b) the center line average roughness (Ra) of surface be that 0.05 μ m～0.1 μ m, maximal roughness (Rmax) they are below 1.0 μ m.Result, when at functional layer 4(the second thermoplastic resin 4b) upper surface (surface of a side contrary with bonding coat 3) or the upper surface of functional layer 4 when release layer (with reference to the 5th embodiment) is set, release property and the sliding of this release layer further improve, easily from roller, extract out, can prevent that adherent phenomenon, the device between the heating part of heat head from polluting.
For example, one in the first and second thermoplastic resin 4a, 4b can use polyester, the opposing party can use polyolefin.Polyester is the linear polyester being formed by dicarboxylic acid composition and diol component, as dicarboxylic acid composition, for example, can be terephthalic acid (TPA), m-phthalic acid, phthalic acid, naphthalene dicarboxylic acids, diphenyldicarboxylic acid, diphenyl ether dicarboxylic acid etc.In addition as diol component, can be for example ethylene glycol, 1,3-PD, BDO, 1,5-PD, 1,6-hexanediol, 1,4-CHDM, diglycol, neopentyl glycol etc..As the preference of polyester, there are polyethylene terephthalate, poly-2,6-naphthalene dicarboxylic acids ethylene glycol or polybutylene terephthalate etc.
In polyolefin, especially taking polypropylene as typical example, from the viewpoint of stretchability, preferably COPP.COPP is generally ethylene copolymer, can use random copolymers or segmented copolymer, from the superficiality of release surface, and preferably random copolymers.As required, can add antioxidant, antistatic agent, colorant, plastifier, other resin etc.Other material of each layer and structure can be identical with the first embodiment.
Fig. 7 is the schematic cross-section of the adhesive label 1 of fifth embodiment of the invention., on the surface of functional layer 4, release layer 8 is set with the difference of the first embodiment.Other structure is identical with the first embodiment.Therefore,, mainly different parts is described.For same section or there is the part mark same numeral of identical function.
As shown in Figure 7, adhesive label 1 possesses recording chart 2, restraining barrier 5, bonding coat 3, functional layer 4 and release layer 8.Release layer 8 contains release agent, and it arranges in order to prevent adherent phenomenon.Release layer 8 can form on the whole surface of the functional layer 4 as substrate, also can form on the necessary surface of part.Release layer 8 can form by add release agent in resin, or also can by release agent dissolve or be dispersed in solvent, then using dispersed liquid coating in the functional layer 4 of substrate, be dried, form thus.Thereby release layer 8 forms the surperficial movability of guaranteeing adhesive label 1 smoothly.
Release layer 8 can use by one or more release agents that form or silicone phosphate etc. in silicone compounds, fluoride compound, wax class or activating agent class.As wax class, can use to dissolve, emulsification or be suspended in the release agent that the potpourri of oil, plant and oily mater in water is major component.Herein, major component refers to, in the potpourri of oil, plant or oily mater shared part by weight be 50wt% above, be preferably 60wt% more than.
As release agent, can use surfactant, the silicone oil of solid wax class, fluorine class or phosphoric acid ester.As solid wax, can use Tissuemat E, amide waxe, tetrafluoroethene powder.As silicone oil, can use grease, but preferred consolidation type silicone oil.As curing type silicone oil, can enumerate reaction-curable, light-cured type, catalyzer curing type etc., wherein reaction-curable silicone oil particularly preferably.Compared with the situation of above-mentioned surfactant-based release agent, in situation about using such curing type silicone oil as release agent, can avoid film surfaces of tacky, dust to adhere to.The interpolation benchmark of curing type silicone oil in above-mentioned resin is to add with the amount of the 0.5wt%～40wt% of weight resin.If addition is less than 0.5wt%, can not get sufficient stripping result; And, if its addition exceedes 40wt%, may cause the sensitivity of shedding mechanism.As reaction-curable silicone oil, be preferably amino-modified silicone oil and epoxide modified silicone oil and react and solidify the silicone oil that forms.In the situation that carrying out film forming by coating, the thickness of release layer 8 is 0.005 μ m～3 μ m, be preferably 0.01 μ m～1 μ m.If the thickness of release layer 8 is less than 0.005 μ m, can not get sufficient stripping result; If exceed 3 μ m, can cause the opening sensitivity of film, thereby not preferred.That is, form release agent if want at the heating part of heat head and prevent adherent phenomenon, consider that the abrasion due to adhesive label 1 must make release agent form very thickly, and if form very thickly, heat conductivity reduces, and can hinder the opening of functional layer 4.On the other hand, by form release layer 8 in adhesive label 1 side as the present invention, can make release layer 8 form as thin as a wafer, can remove the essential factor of the opening that hinders functional layer 4.
The formation of release layer 8 is not limited to specific method, the composition that for example can make to contain release agent is dispersed or dissolved in taking concentration as 1wt% arbitrarily in solvent below, use roll coater, gravure coating machine, nick version coating machine, reverse coating machine (reverse coater), scraper coating machine (bar coater) etc. to apply, make solvent evaporation, form thus release layer.The coating amount of release layer 8 is 0.001g/m 2～0.5g/m 2, be preferably 0.01g/m 2～0.05g/m 2left and right, thus can not hinder based on using heat head to carry out the shedding mechanism of the heat fusing of film, and can obtain sufficient release property.
The in the situation that of release agent application, can carry out in the arbitrary stage before the stretching of the film as substrate or after stretching.The wetting state control method of the basilar memebrane during as release agent application, can be used silane coupling agent excite or applicator surface is imposed to Corona discharge Treatment the functional group of applicator surface.In addition, release layer 8 of the present invention excellence aspect environment resistant, and roller keeping quality improves, quality that can long term maintenance adhesive label 1.In addition, not hindering in the scope of the object of the invention, in release layer 8, can suitablely contain resin glue, hot melt property material etc.For example can add heat-resisting material, antioxidant, surfactant, antiseptic, defoamer etc.
Above, adopt the first embodiment～five embodiment to be illustrated about adhesive label 1 of the present invention, but can be by comprise antistatic agent on the layer of any one, what prevent from being caused by the static of adhesive label 1 is charged.Below be specifically described.
Preferably in any one deck of recording chart 2, restraining barrier 5, bonding coat 3, functional layer 4 or release layer 8, contain antistatic agent.By containing antistatic agent, can prevent that the conveying of adhesive label 1 is bad.As antistatic agent, for example, can use fatty acid monoglyceride (グ リ セ リ Application モ ノ fatty acid エ ス テ Le).Antistatic agent can be blended in above-mentioned arbitrary layer or be coated in layer surface.As coating method, for example can utilize water or alcohol liquid equal solvent that antistatic agent is diluted, then use spraying, dipping, bristle, roll coater etc. to apply, be dried thereafter.Content or the coating amount of antistatic agent are not particularly limited.Can give play to anti-static function and can use heat head to set arbitrarily in functional layer 4 forms the scope of peristome 13.By containing antistatic agent, can prevent that adhesive label 1 is attached on hand and because electric discharge makes functional layer 4 perforates.
In addition, in this first embodiment, heat and make the heater means of its opening as the functional layer 4 to adhesive label 1, use hot 15, but adhesive label 1 of the present invention is not limited to this heater means, make functional layer 4 openings thereby for example also can utilize the electromagnetic wave such as laser or microwave to heat.In the situation that making functional layer 4 opening with electromagnetic wave, by release layer 8 being set at the topmost of adhesive label 1, also can improve the logical paper of adhesive label 1, can suppress the pollution of label distribution device or adhesive label 1.In addition,, as hot head, can use line formula heat head or the hot head of string type.In addition, from the viewpoint of the resistive element of a heat heating part, can be film thermal head, can be also the hot head of thick film that utilizes the formation of thick film screen printing method.
As mentioned above, adhesive label 1 of the present invention does not use peeling paper.Thereby, do not produce in use the peeling paper going out of use, thereby can reduce environmental pressure.In addition, due to without peeling paper, thereby thickness attenuation, thereby can increase the distribution number of effective adhesive label of each roller.And, because use the matrix of the little material of rigidity as recording chart 2, so in the time making functional layer 4 openings and press from recording chart 2 sides, the contact area expansion between bonding coat 3 and nappe 12, can guarantee desired bonding force.In addition, because be provided with restraining barrier 5 between recording chart 2 and bonding coat 3, so prevent that solvent that bonding agent comprises is exuded to the record surface of recording chart 2, prevents color development or variable color that record surface meets accident.
Fig. 8 is the process chart that the manufacture method of the adhesive label 1 of sixth embodiment of the invention is shown.To adopting identical symbol to describe with a part or the part with same function.
The manufacture method of adhesive label 1 of the present invention possesses: restraining barrier forms operation S1, applies blocking agent and is dried to form restraining barrier 5 in a side contrary with record surface of recording chart 2; Bonding coat forms operation S2, and on restraining barrier 5, applying adhesive forms bonding coat 3; And functional layer attaching operation S3, on bonding coat 3, attach functional layer 4.About the material on recording chart 2, bonding coat 3, functional layer 4 and restraining barrier 5 etc., as illustrated in the first embodiment.In the time that applying adhesive is dried to form restraining barrier 5 on restraining barrier 5, is blocked layer 5 prevention from the solvent of bonding agent volatilization and is exuded to recording chart 2 sides.As a result, prevent color development or the variable color that the record surface of recording chart 2 meets accident.In addition, form in operation S2 at bonding coat, can on the supporting mass being formed by platform paper or film etc., be dried and on supporting mass, form bonding coat by applying adhesive, this bonding coat is transferred to restraining barrier 5 and as bonding coat 3, is substituted in applying adhesive on restraining barrier 5 and is dried to form bonding coat 3.
Label distribution device of the present invention possesses to be carried delivery section, the heating function layer of adhesive label of the first～five embodiment to form peristome and makes the heating part that bonding coat exposes and the control part of controlling delivery section and heating part.
Label distribution device of the present invention does not use large-scale manufacturing installation, can, before being about to use adhesive label, set adhesion area and non-adhesion area according to application target.Further, can change according to the environment for use of the character of bonded body, adhesive label quantity, position or the aperture opening ratio of the peristome forming at adhesion area.Further, without using peeling paper, owing to making thickness attenuation without peeling paper, thereby can increase the distribution number of effective adhesive label of each roller.In addition, due to without peeling paper, thereby can reduce environmental pressure.And then, by the superiors at adhesive label, release layer is set, can prevent that adhesive label is attached to the adherent phenomenon of heating part, can accurately form adhesion area in the target location of adhesive label.In addition, also can prevent that adhesive label is attached to the pollution of the label distribution device of device side.
Below, be specifically described.As heating part, can use heat head or laser.If use hot head, multiple heater elements can be arranged to shape in column, thereby can be simultaneously the above-listed shape of functional layer form multiple peristomes.Control part is selected pre-stored patterns of openings information, and heater element is generated heat, thereby forms the adhesion area being made up of multiple peristomes in functional layer.Control part is controlled delivery section, carries the adhesive label 1 of ormal weight, makes heater element heating.By repeatedly carrying out this process, on adhesive label, form the patterns of openings of the regulation that bonding coat exposes.
The opening footpath of peristome can be controlled according to the heat of being given by heater element.That is, in order to reduce opening footpath, can suppress to be supplied to by heater element the heat of functional layer, in order to increase opening footpath, can make heat increase., the heat time that control part is supplied to the electric power of heater element and functional layer is heated by control, can control the opening footpath of peristome.The pattern-information of pre-stored peristome, the pattern-information of control part based on selected patterns of openings, controls heating part and delivery section, forms the adhesion area being made up of the pattern of peristome on adhesive label.For example, selectively form patterns of openings, the patterns of openings of the staggered arrangement of peristome, the patterns of openings of peristome honeycomb arrangement or the patterns of openings being formed by different multiple peristomes that multiple peristomes are arranged in length and breadth.Be specifically described by the 7th and the 8th embodiment below.
Fig. 9 is the schematic pie graph of the label distribution device 20 of seventh embodiment of the invention.Label distribution device 20 possesses: the roller paper incorporating section 22 of storage adhesive label 1, cut off the roller paper cutting portion 23 of adhesive label 1, as the label record portion 24 in the recording unit of adhesive label 1 enterprising line item and make the bonding portion 25 that manifests of adhesive label 1 exhibit adhesiveness.22 storages of roller paper incorporating section are wound into the adhesive label 1 of roller shape.Adhesive label 1 for example as shown in Figure 1, possesses the lit-par-lit structure of recording chart 2, restraining barrier 5, bonding coat 3 and functional layer 4, or possesses as shown in Figure 9 the lit-par-lit structure of recording chart 2, bonding coat 3 and functional layer 4.Roller paper cutting portion 23 utilizes cutting part 26 to cut into specified length from the adhesive label 1 of sending as the conveying roller 27 of delivery section.Label record portion 24 utilizes and records with hot 21 at the enterprising line item of (heat sensitive recording layer) record surface that loads the adhesive label 1 on conveying roller 28.As used, Fig. 2 A, Fig. 2 B, Fig. 2 C illustrate, the bonding portion 25 that manifests utilizes as the heat of heating part 15 pairs and is clipped in as the functional layer 4 of the adhesive label 1 between the conveying roller 29 of delivery section and heat 15 and heats, make its opening, bonding coat 3 is exposed at its peristome 13.
Herein, hot 15 can become heating part by being set up in parallel multiple heaters, form the adhesion area that makes multiple peristome 13 openings arranged side by side simultaneously.Heating part preferably uses the hot head of hot concentrated.The heating face of heating part can be any one of rectangle, circle, ellipse, heart, other shape.Multiple heaters can form with the arranging density of 100dpi～600dpi.
Label distribution device 20 can be controlled heating part and delivery section by not shown control part, thereby forms at the throughput direction of adhesive label 1 adhesion area being made up of multiple peristomes 13., can form at the needed position of adhesive label 1 peristome 13 of necessary amount.Thus, can control the position of the adhesion area of the exhibit adhesiveness of adhesive label 1 and size.
Figure 10 is the schematic pie graph of the label distribution device 20 of eighth embodiment of the invention.Be with the difference of the 7th embodiment, utilize a heat 34 shorthand etc. on heat sensitive recording layer 8, in functional layer 4, form peristome 13.For same section or there is the part mark same numeral of identical function.
Label distribution device 20 possesses: roller housing unit 30, and its storage is wound into the adhesive label 1 of roller shape; Cutter unit 33, it cuts off adhesive label 1; As the heat of heating part 34, the enterprising line item of its heat sensitive recording layer at adhesive label 1 forms peristome 13 in functional layer 4; Air roll 36, it keeps adhesive label 1 in the time utilizing hot 34 record or form peristome 13; Collecting device 41, adhesive label 1 was wound on upper also temporary transient reservation of take up roll 41a by it; As conveying roller 31,39 and the driven voller 32,40 of delivery section of carrying adhesive label 1; Throughput direction limiting means 38, the throughput direction of its restriction adhesive label 1; And not shown control part, it carries out energy control and conveying roller 31,39 and air roll 36 is rotated to control hot 34.
This label distribution device 20 moves as follows.Control part drives conveying roller 31 and driven voller 32, thereby extracts the adhesive label 1 of the coiling in roller housing unit 30 out.Control part further moves into from moving into road 37 adhesive label 1 that has passed through cutter unit 33, in the mode being clipped between air roll 36 and heat 34, air roll 36 is turned clockwise.Thereby control part further makes the heating part heating of hot 34 on the record surface of adhesive label 1, record lettering information.Control part makes conveying roller 39 and take up roll 41a rotation, and the adhesive label 1 that has carried out record on record surface is guided to collecting device 41 by insert port 41c, utilizes guide 41b to be pressed in take up roll 41a and goes up while reel.Control part is worked cutter unit 33 and is cut off adhesive label 1, and operation of recording is stopped.
Next, control part rotates conveying roller 39, the cutting portion of adhesive label 1 is delivered to the position of conveying roller 39 and driven voller 40.Then, control part drives throughput direction limiting means 38, and conveying roller 39 rotate round about, and air roll 36 is turned clockwise, make thus adhesive label 1 by carrying path 35 reverse be clipped in hot 34 and air roll 36 between.Control part, based on selected pattern-information, makes the heating part heating of hot 34, forms the adhesion area of the regulation being made up of multiple peristomes 13 in the functional layer 4 of adhesive label 1.The adhesive label 1 that is formed with adhesion area is extracted out to outside from the position of throughput direction limiting means 38.
The shapes of adhesion area etc. can selectively form the patterns of openings that multiple peristomes 13 arrange in length and breadth, the patterns of openings of peristome 13 staggered arrangements, patterns of openings or the patterns of openings being formed by different multiple peristomes 13 etc. of peristome 13 honeycomb arrangement.Like this, can before being about to adhesive label 1, set adhesion area and non-adhesion area according to application target, further, can change according to the environment for use of the character of bonded body 12, adhesive label 1 quantity, position or the aperture opening ratio of the peristome 13 forming at adhesion area.

Claims (19)

1. an adhesive label, it possesses:
Recording chart, it has record surface;
Restraining barrier, it is arranged on a side contrary with described record surface of described recording chart;
Bonding coat, it is arranged on described restraining barrier; And
Functional layer, it is arranged on described bonding coat,
By heating, opening exposes described bonding coat to described functional layer.
2. adhesive label according to claim 1, wherein,
Water-soluble high-molecular material is contained on described restraining barrier.
3. adhesive label according to claim 2, wherein,
Described water-soluble high-molecular material contains water soluble propene's resin.
4. adhesive label according to claim 3, wherein,
In described restraining barrier, contain described water soluble propene's resin with the scope of 10wt%～40wt%.
5. adhesive label according to claim 2, wherein
Described water-soluble high-molecular material contains polyvinyl alcohol (PVA).
6. adhesive label according to claim 1, wherein,
Described restraining barrier is with 0.5g/m 2～5g/m 2scope form.
7. adhesive label according to claim 1, wherein,
The scope of the average bed thickness of described functional layer in 0.1 μ m～10 μ m.
8. adhesive label according to claim 1, wherein
Described functional layer is made up of olefine kind resin.
9. adhesive label according to claim 1, wherein,
Described functional layer is made up of porous layer.
10. adhesive label according to claim 9, wherein,
The void content of described porous layer is in 30%～85% scope.
11. adhesive labels according to claim 1, wherein,
Described functional layer is laminated with the first immiscible each other thermoplastic resin and the second thermoplastic resin.
12. adhesive labels according to claim 1, wherein,
By the heating of described functional layer, the diameter of the peristome of opening is not less than 40 μ m.
13. adhesive labels according to claim 1, wherein,
In described functional layer, be provided with release layer.
14. adhesive labels according to claim 1, wherein,
Described recording chart at least has the heat sensitive recording layer recording by heating on described record surface.
The manufacture method of 15. 1 kinds of adhesive labels, comprises following operation:
Restraining barrier forms operation, at a side coating blocking agent contrary with record surface of recording chart, is dried to form restraining barrier;
Bonding coat forms operation, on described restraining barrier, forms bonding coat; And
Functional layer attaches operation, pastes the functional layer of opening by heating on described bonding coat.
The manufacture method of 16. adhesive labels according to claim 15, wherein,
Described functional layer is made up of olefine kind resin.
The manufacture method of 17. adhesive labels according to claim 16, wherein,
Described restraining barrier is made up of water-soluble high-molecular material.
18. 1 kinds of label distribution devices, it possesses:
Delivery section, it carries adhesive label claimed in claim 1;
Heating part, it heats described functional layer and forms peristome, and described bonding coat is exposed; And
Control part, it controls described delivery section and described heating part.
19. label distribution devices according to claim 18, wherein,
This label distribution device heats the described record surface of described adhesive label and carries out record.
CN201410055090.4A 2013-02-19 2014-02-18 Pressure-sensitive adhesive label, method of manufacturing pressure-sensitive adhesive label, and label issuing device Pending CN103996353A (en)

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